EP 3524985 B1 20210113 - APPARATUS AND METHOD FOR INSULATION MONITORING WITH DETECTION OF DEFECTIVE OUTER CONDUCTOR IN AN UNEARTHED 3-PHASE POWER SUPPLY SYSTEM
Title (en)
APPARATUS AND METHOD FOR INSULATION MONITORING WITH DETECTION OF DEFECTIVE OUTER CONDUCTOR IN AN UNEARTHED 3-PHASE POWER SUPPLY SYSTEM
Title (de)
VORRICHTUNG UND VERFAHREN FÜR EINE ISOLATIONSÜBERWACHUNG MIT ERKENNUNG EINES FEHLERBEHAFTETEN AUSSENLEITERS IN EINEM 3-PHASIGEN UNGEERDETEN STROMVERSORGUNGSSYSTEM
Title (fr)
DISPOSITIF ET PROCÉDÉ POUR UNE SURVEILLANCE DE L'ISOLATION À RECONNAISSANCE D'UN CONDUCTEUR EXTÉRIEUR DÉFECTUEUX DANS UN SYSTÈME D'ALIMENTATION ÉLECTRIQUE TRIPHASÉ ISOLÉ TERRE
Publication
Application
Priority
DE 102018102959 A 20180209
Abstract (en)
[origin: US2019250204A1] The fundamental idea of the present invention rests upon determining the phase angle between the measured mains voltage and the measured neutral-point voltage when presuming only one measurement of the mains voltage to ground at one of the outer conductors and one measurement of the neutral-point voltage to ground. The value of the thus determined phase angle is in one of three angle ranges which each extend over 120 degrees and are to be assigned to one of the three outer conductors so that the faulty outer conductor is determined. The faulty outer conductor is thus detected by measuring only one mains voltage in conjunction with the measurement of the neutral-point voltage by evaluating the phase between the two measured voltage.
IPC 8 full level
G01R 27/02 (2006.01); G01R 31/12 (2020.01); G01R 31/52 (2020.01)
CPC (source: EP US)
G01R 27/025 (2013.01 - EP US); G01R 31/1272 (2013.01 - EP US); G01R 31/52 (2020.01 - EP US); G01R 31/40 (2013.01 - US); G01R 31/58 (2020.01 - US)
Citation (examination)
DE 19837933 A1 20000302 - WACKER CHEMIE GMBH [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3524985 A1 20190814; EP 3524985 B1 20210113; DE 102018102959 A1 20190814; US 11009539 B2 20210518; US 2019250204 A1 20190815
DOCDB simple family (application)
EP 19152932 A 20190122; DE 102018102959 A 20180209; US 201916270281 A 20190207